Hardware Performance Tuning - Mailing list pgsql-general

From Knut P. Lehre
Subject Hardware Performance Tuning
Date
Msg-id 5.2.0.9.2.20030805131540.00c23558@uio-pop.uio.no
Whole thread Raw
Responses Re: Hardware Performance Tuning  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-general
The doc "PostgreSQL Hardware Performance Tuning" by Bruce Momjian, 16th
January 2003 says: "As a start for tuning, use 25% of RAM for cache size,
and 2-4% for sort size.", and "The default POSTGRESQL conguration allocates
64 shared buffers. Each buffer is 8 kilobytes.".
Have I understood it correctly that "shared_buffers" should be set to 25%
of RAM divided by 8kB, and "sort_mem" to 2-4% of RAM? (If so, the default
values of 64 and 512 respectively, appear relatively small).

Thanks, KP



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